Karcher WRP 1000 ECO - Manual (Page 9)

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Proceed as follows to subsequently change
the filter tension:

Turn the tension lever to the left until the
lever reaches the stop.
 Pull the unlocking lever towards the
front and turn the tightening lever to-
ward the right until the unlocking lever
locks in in the next nose.
 Turn the lever of the multi-channel
valve in "FILTRATION" position.
Note
After longer idling times it takes a lot of ef-
fort to activate the multi-channel valve.

Check filter pre-tension.
 Start the pump in the building.
Note
During normal operations, you must back-
wash the filter at least once daily. The sys-
tem does not release any processed water
during the back-rinsing process..
During backwash, the dirt collected in the
filament filter is removed. To do this, the fil-
ament filter is rinsed in the reverse direc-
tion. According to the local regulations, the
rinsed out dirt is either directed into the
sludge collection of the recycling system,
an existing disposal chain or the drainage.

Start the pump in the building.
 Turn the lever of the multi-channel
valve in "RÜCKSPÜLEN/BACKWASH“
position.
 Loosen the filament filter by turning the ten-
sion lever in the anti-clockwise direction.
 Wait for 30 seconds.
 Tighten the filament filter and loosen it
immediately.
 Repeat ten times this process of waiting
for 10 minutes - tightening - loosening.
 Reset the filter pre-tension.
 Turn the lever of the multi-channel
valve in "ERSTFILTRAT/RINSE“ posi-
tion.
 Wait 2 minutes
 Turn the lever of the multi-channel
valve in "FILTRATION" position.
If the high-pressure cleaner or the washing
system does not use up the water, the proc-
essed water is circulated to avoid foul
odour.
Note
The immersion pump can be periodically
switched on/off during non-operating hours
(for e.g. at night, over the week-end) to low-
er the operating hours. For this you can
connect the immersion pump via a timer to
the power supply.
Maximum interval increment: 1 hour.
The plant must be operated in frost-free
rooms. During frost, put the system out of
operation and remove all traces of water:

Pull out the hoses.
 Let the system dry-run.
 Switch off the building pump.
 If there is risk of frosting, then any exist-
ing water traces must be removed (see
section "Anti-freezing").
Caution
Risk of injury and damage! Observe the
weight of the appliance when you transport it.

When transporting in vehicles, secure
the appliance according to the guide-
lines from slipping and tipping over.
Caution
Risk of injury and damage! Note the weight
of the appliance in case of storage.
1 Filament filter
2 Multi-channel valve
3 Manometer at the filter inlet
4 Overflow valve
5 Backwash pipe
6 Circulation (to sludge collector)
7 To the processed water tank/ high-
pressure cleaner
8 Sludge collection of the recycling system *)
9 Pump basin of the recycling system *)
10 Immersion pump *)
11 Separation system (EN 858) *)
12 Control shaft *)
13 to drainage system *)
*) on building side
The following section describes the flow-
path of the water in different positions of the
multi-channel valve.
In filter operations, the water flows via
– Immersion pump
– Multi-channel valve in "FILTRATION"
position
– Filter (flow direction of filtering)
– To the high-pressure cleaner/proc-
essed water tank
During backwash, the water flows via
– Immersion pump
– Multi-channel valve in position RÜCK-
SPÜLEN/BACKWASH"
– Filter (against flow direction of filtering)
– To the sludge collector
During final rinse the water flows via:
– Immersion pump
– Multi-channel valve in position ERST-
FILTRAT/RINSE
– Filter (flow direction of filtering)
– To the sludge collector
This position is not required for operating
the system.
Adjust the filter pre-tension
Filter operations
Backwash
Processed water circulation
Frost protection
Shutdown
Transport
Storage
Function
Flow pattern
Functional description
FILTRATION
RÜCKSPÜLEN/BACKWASH
ERSTFILTRAT/RINSE
UMWÄLZUNG/RECIRCULATION
Technical specifications
WRP
1000
eco
WRP
1000
com-
pact
Pressure (min.) MPa
(bar)
0,2 (2)
Pressure
(max.) MPa
(bar)
0,35 (3,5)
Filter capacity l/h 1000
Width mm 660
Depth mm 470
Height mm 980 1230
Weight kg 45
9 EN